> How are you going to check Gemini’s math on that?

Gemini used 40% choline by weight for alpha GPC and 18% for citicoline, which seems to check out with other sources.

> I’m leaning towards alpha gpc supplements.

I haven't looked into the studies recently, but there have been some negative findings with alpha GPC supplementation[1]. May be worth a gander.

[1] https://examine.com/supplements/alpha-gpc/#what-are-alpha-gp...